LTC6400-8
3
64008f
DC ELECTRICAL CHARACTERISTICS
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Input/Output Characteristic
G
DIFF
Gain V
IN
= ±400mV Differential
l
7.5 8 8.5 dB
TC
GAIN
Gain Temperature Drift V
IN
= ±400mV Differential
l
–0.13 mdB/°C
V
SWINGMIN
Output Swing Low Each Output, V
IN
= ±1.6V Differential
l
74 170 mV
V
SWINGMAX
Output Swing High Each Output, V
IN
= ±1.6V Differential
l
2.3 2.48 V
V
OUTDIFFMAX
Maximum Differential Output Swing 1dB Compressed
l
4.8 V
P-P
I
OUT
Output Current Drive V
OUT
> 2V
P-P,DIFF
l
20 mA
V
OS
Input Offset Voltage Differential
l
–5 5 mV
TCV
OS
Input Offset Voltage Drift Differential
l
2μV/°C
I
VRMIN
Input Common Mode Voltage Range, MIN 1 V
I
VRMAX
Input Common Mode Voltage Range, MAX 1.8 V
R
INDIFF
Input Resistance (+IN, –IN) Differential
l
340 400 460 Ω
C
INDIFF
Input Capacitance (+IN, –IN) Differential, Includes Parasitic 1 pF
R
OUTDIFF
Output Resistance (+OUT, –OUT) Differential
l
18 25 32 Ω
R
OUTFDIFF
Filtered Output Resistance (+OUTF, –OUTF) Differential
l
85 100 115 Ω
C
OUTFDIFF
Filtered Output Capacitance (+OUTF, –OUTF) Differential, Includes Parasitic 2.7 pF
CMRR Common Mode Rejection Ratio Input Common Mode Voltage 1.1V~1.7V
l
39 55 dB
Output Common Mode Voltage Control
G
CM
Common Mode Gain V
OCM
= 1V to 1.6V 1 V/V
V
OCMMIN
Output Common Mode Range, MIN
l
1
1.1
V
V
V
OCMMAX
Output Common Mode Range, MAX
l
1.6
1.5
V
V
V
OSCM
Common Mode Offset Voltage V
OCM
= 1.1V to 1.5V
l
–15 15 mV
TCV
OSCM
Common Mode Offset Voltage Drift
l
6μV/°C
IV
OCM
V
OCM
Input Current
l
4.5 15 μA
ENABLE Pin
V
IL
ENABLE Input Low Voltage
l
0.8 V
V
IH
ENABLE Input High Voltage
l
2.4 V
I
IL
ENABLE Input Low Current ENABLE = 0.8V
l
0.5 μA
I
IH
ENABLE Input High Current ENABLE = 2.4V
l
1.3 4 μA
Power Supply
V
S
Operating Supply Range
l
2.85 3 3.5 V
I
S
Supply Current ENABLE = 0.8V, Input and Output Floating
l
70 85 95 mA
I
SHDN
Shutdown Supply Current ENABLE = 2.4V, Input and Output Floating
l
0.9 3 mA
PSRR Power Supply Rejection Ratio
(Differential Outputs)
V
+
= 2.85V to 3.5V
l
50 68 dB
The l denotes the specifi cations which apply over the full operating
temperature range, otherwise specifi cations are at T
A
= 25°C. V
+
= 3V, V
–
= 0V, +IN = –IN = V
OCM
= 1.25V, ENABLE = 0V, No R
L
unless
otherwise noted.